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Python Bluetooth: how to send a file from windows to Raspberry Pi

I need to transfer a file from my Windows laptop to a Raspberry Pi, and also measure the speed and transfer time of the file. Looking on the internet I chose to use Pybluez, but I am sure there is something missing to realise the transfer to a Raspberry Pi and I don't understand what. I should probably figure out how to merge the pieces of code.This is the inquiry code:
import bluetooth
print("performing inquiry...")
nearby_devices = bluetooth.discover_devices(
duration=8, lookup_names=True, flush_cache=True, lookup_class=False)
print("found %d devices" % len(nearby_devices))
for addr, name in nearby_devices:
try:
print(" %s - %s" % (addr, name))
except UnicodeEncodeError:
print(" %s - %s" % (addr, name.encode('utf-8', 'replace')))
This is the code for the server (i.e. the device that has to send the file, in my case it's my laptop, right?):
from bluetooth import *
server_sock=BluetoothSocket( RFCOMM )
server_sock.bind(("",PORT_ANY))
server_sock.listen(1)
port = server_sock.getsockname()[1]
uuid = "94f39d29-7d6d-437d-973b-fba39e49d4ee"
advertise_service( server_sock, "SampleServer",
service_id = uuid,
service_classes = [ uuid, SERIAL_PORT_CLASS ],
profiles = [ SERIAL_PORT_PROFILE ],
# protocols = [ OBEX_UUID ]
)
print("Waiting for connection on RFCOMM channel %d" % port)
client_sock, client_info = server_sock.accept()
print("Accepted connection from ", client_info)
try:
while True:
data = client_sock.recv(1024)
if len(data) == 0: break
print("received [%s]" % data)
except IOError:
pass
print("disconnected")
client_sock.close()
server_sock.close()
print("all done")
This is the code for the client (which in my case would then be the Raspberry Pi):
from bluetooth import *
import sys
if sys.version < '3':
input = raw_input
addr = None
if len(sys.argv) < 2:
print("no device specified. Searching all nearby bluetooth devices for")
print("the SampleServer service")
else:
addr = sys.argv[1]
print("Searching for SampleServer on %s" % addr)
# search for the SampleServer service
uuid = "94f39d29-7d6d-437d-973b-fba39e49d4ee"
service_matches = find_service( uuid = uuid, address = addr )
if len(service_matches) == 0:
print("couldn't find the SampleServer service =(")
sys.exit(0)
first_match = service_matches[0]
port = first_match["port"]
name = first_match["name"]
host = first_match["host"]
print("connecting to \"%s\" on %s" % (name, host))
# Create the client socket
sock=BluetoothSocket( RFCOMM )
sock.connect((host, port))
print("connected. type stuff")
while True:
data = input()
if len(data) == 0: break
sock.send(data)
sock.close()
What should i do? does the client-server code work directly by running the client programme on the Raspberry and the server on the computer? How can i then transfer the file? Is this a correct method or not?
Help me please!

Echo server chat application having issues connecting

I'm a novice when it comes to networking, but for my distributed systems project I'm attempting to create a simple application that allows any computer on the same network with python to send messages to a server. I cannot get my computer and laptop to connect successfully, and I get a timeout error on the client side:
Here is my server code:
import socket
import select
HEADER_LENGTH = 10
IP = "127.0.0.1"
PORT = 1234
server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
server_socket.bind((IP, PORT))
server_socket.listen()
sockets_list = [server_socket]
clients = {}
def receive_message(client_socket):
try:
message_header = client_socket.recv(HEADER_LENGTH)
if not len(message_header):
return False
message_length = int(message_header.decode("utf-8").strip())
return {"header": message_header, "data" : client_socket.recv(message_length)}
except:
return False
while True:
read_sockets, _, exception_sockets = select.select(sockets_list, [], sockets_list)
for notified_socket in read_sockets:
if notified_socket == server_socket:
client_socket, client_address = server_socket.accept()
user = receive_message(client_socket)
if user is False:
continue
sockets_list.append(client_socket)
clients[client_socket] = user
print(f"Accepted new connection from {client_address[0]}:{client_address[1]} username:{user['data'].decode('utf-8')}")
else:
message = receive_message(notified_socket)
if message is False:
print(f"Closed connection from {clients[notified_socket]['data'].decode('utf-8')}")
sockets_list.remove(notified_socket)
del clients[notified_socket]
continue
user = clients[notified_socket]
print(f"Received message from {user['data'].decode('utf-8')}: {message['data'].decode('utf-8')}")
for client_socket in clients:
if client_socket != notified_socket:
client_socket.send(user['header'] + user['data'] + message['header'] + message['data'])
for notified_socket in exception_sockets:
sockets_list.remove(notified_socket)
del clients[notified_socket]
Here is my client code
import socket
import select
import errno
import sys
HEADER_LENGTH = 10
IP = "127.0.0.1"
PORT = 1234
my_username = input("Username: ")
client_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
client_socket.connect((IP, PORT))
client_socket.setblocking(False)
username = my_username.encode("utf-8")
username_header = f"{len(username):<{HEADER_LENGTH}}".encode("utf-8")
client_socket.send(username_header + username)
while True:
message = input(f"{my_username} > ")
if message:
message = message.encode("utf-8")
message_header = f"{len(message):<{HEADER_LENGTH}}".encode("utf-8")
client_socket.send(message_header + message)
try:
while True:
#receive things
username_header = client_socket.recv(HEADER_LENGTH)
if not len(username_header):
print("connection closed by the server")
sys.exit()
username_length = int(username_header.decode("utf-8").strip())
username = client_socket.recv(username_length).decode("utf-8")
message_header = client_socket.recv(HEADER_LENGTH)
message_length = int(message_header.decode("utf-8").strip())
message = client_socket.recv(message_length).decode("utf-8")
print(f"{username} > {message}")
except IOError as e:
if e.errno != errno.EAGAIN and e.errno != errno.EWOULDBLOCK:
print('Reading error', str(e))
sys.exit()
continue
except Exception as e:
print('General error', str(e))
sys.exit()
On the same machine, it works as expected since I'm using the hostname for both the server and client, but obviously, it will not work on separate devices.
How may I change this code so that I can get my laptop to act as a client, and my computer to act as a server? I only need to connect to devices on the same network. Thank you for any answers.

I found the solution myself, I just had to set the 'IP' in client to that of the server local IP, and lastly run both in IDLE so I would get the prompt to bypass the firewall, as I was running cmd previously and was not getting the option to bypass.

My python proxy server keeps giving me "The connection was reset"

I have been writing a transparent proxy server in python to log where the request is going. Most pages load e.g. google.co.uk, however, pages such as google.com get stuck loading and some pages such as a local IP get the "Connection reset" error in the browser.
Any help would be greatly appreciated.
#!/usr/bin/env python
import socket, optparse, thread
def proxy(url, port, connection, address, data):
try:
get = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
get.connect((url, port))
get.send(data)
while True:
reply = get.recv(BUFFER)
if len(reply) > 0:
connection.send(reply)
info = float(len(reply))
info = float(info / 1024)
info = "%.3s" %(str(info))
info = "%s KB" %(info)
print("[*] Request Complete: %s => %s <=" %(str(address[0]), str(info)))
else:
break
get.close()
connection.close()
except Exception as e:
get.close()
connection.close()
def handle(connection, address, data):
first = data.split("\n")[0]
url = first.split(" ")[1]
protocolPosition = url.find("://")
if protocolPosition == -1:
# No protocol so default
temp = url
else:
temp = url[(protocolPosition + 3):]
if ":" in temp:
# Port other than 80 has been specified
port = temp.split(":")[-1].strip("/")
webserver = temp.split(":")[:-1]
try:
# Incase there is ':' in the URL
webserver = "".join(webserver)
except:
pass
else:
port = 80
webserver = temp.strip("/")
print("[*] '%s' => '%s'" %(address[0], webserver))
proxy(webserver, port, connection, address, data)
receive = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
try:
receive.bind(("0.0.0.0", PORT))
except socket.error as e:
print("Failed to bind to 0.0.0.0:%d" %(PORT))
print("Error: " + str(e))
raise SystemExit
receive.listen(MAXCONNECTIONS)
print("Listening on 0.0.0.0:%d" %(PORT))
while True:
try:
connection, address = receive.accept()
data = connection.recv(BUFFER)
thread.start_new_thread(handle, (connection, address, data,))
except KeyboardInterrupt:
break
print("\nReleasing socket")
receive.close()
Edit: After some digging around and error handling I narrowed the error down to
[Errno -2] Name or service not known

How to send stream trough socket when using select()?

After long hours of research and testing I finally ask here.
My script has to handle multiple client connections and in the same time has to get and send a stream from another socket.
Finally I've been able to make it work but only for one user. That user connects to the socket, the script connects to the other socket, then return the stream to the client.
The script works pretty well but has a some hard limitations :
- it send the stream to the client but,
- even if the socket is in non-blocking mode I think that calling a socket inside another one is the main reason why it reacts like it was in blocking mode (because one ot these is continuously sending datas ?)
By the way I think that the select() method could allow me to do what I want, but I don't clearly understand how.
Here is the server code taht works for one client, but is blocking
#!/usr/bin/env python
# coding: utf-8
from __future__ import print_function
import sys, time, base64, socket
server_ip = 'XX.XX.XX.XX'
def caster_connect(connected_client, address):
username = 'XXXXXXX'
password = 'XXXXXXXXX'
host = 'XX.XX.XX.XX'
port = 2102
pwd = base64.b64encode("{}:{}".format(username, password).encode('ascii'))
pwd = pwd.decode('ascii')
u_message = ''
stream_type = 'CMRp'
header = \
"GET /" + str(stream_type) + " HTTP/1.1\r\n" +\
"Host " + str(host) + "\r\n" +\
"Ntrip-Version: Ntrip/1.0\r\n" +\
"User-Agent: my_script.py/0.1\r\n" +\
"Accept: */*\r\n" +\
"Authorization: Basic {}\r\n\r\n".format(pwd) +\
"Connection: close\r\n"
print("Connecting to caster...\n")
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((host,int(port)))
s.send(header.encode('ascii'))
print("Waiting answer from caster...\n")
while True:
try:
data = s.recv(2048)
connected_client.send(data)
print("Sending data from caster at %s" % time.time())
sys.stdout.flush()
# On any error, close sockets
except socket.error, e:
print("No data received from caster : %s" % e)
print("Close client connection at %s" % format(address))
s.close()
break
return
#----------------
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
sock.bind((server_ip, 5680))
sock.settimeout(3)
try:
while True:
try:
sock.listen(5)
client, address = sock.accept()
print ("%s connected" % format(address) )
msg = client.recv(4096)
except socket.timeout, e:
err = e.args[0]
if err == 'timed out':
print("Timed out, retry later")
continue
else:
print(socket.error)
sock.close()
except socket.error:
print(socket.error)
sock.close()
else:
if len(msg) == 0:
print("Shutdown on client end")
sock.close()
else:
print(msg)
caster_response = caster_connect(client, address)
sys.stdout.flush()
print("Close")
client.close()
sock.close()`enter code here`
except KeyboardInterrupt:
print("W: Keyboard interrupt, closing socket")
finally:
sock.close()
And this is the code I found to handle select()
#!/usr/bin/env python
# coding: utf-8
import select, socket, sys, Queue
server = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
server.setblocking(0)
server.bind(('XX.XX.XX.XX', 64000))
server.listen(5)
inputs = [server]
outputs = []
message_queues = {}
while inputs:
readable, writable, exceptional = select.select(
inputs, outputs, inputs)
for s in readable:
if s is server:
connection, client_address = s.accept()
print("New connection from %s" % client_address)
connection.setblocking(0)
inputs.append(connection)
message_queues[connection] = Queue.Queue()
else:
data = s.recv(1024)
print("Data received : %s" % data)
if data:
message_queues[s].put(data)
if s not in outputs:
outputs.append(s)
else:
if s in outputs:
outputs.remove(s)
inputs.remove(s)
s.close()
del message_queues[s]
for s in writable:
try:
next_msg = message_queues[s].get_nowait()
print("Next msg : %s" % next_msg)
except Queue.Empty:
outputs.remove(s)
else:
s.send(next_msg)
for s in exceptional:
inputs.remove(s)
if s in outputs:
outputs.remove(s)
s.close()
del message_queues[s]
In this code (found at this page) I didn't make changes as I don't know how to handle this.
Maybe by creating another server script that would only handle the stream part, so the main script would act as a server for clients, but as client for the stream part ?

Verify Python socket is encrypted

I've made a TCP echo client/server with bits from here and here. How can I verify that the socket is encrypted and cannot be intercepted and read? I've tried using Wireshark, but both SSL and non-SSL show encrypted packets. This makes me question their validity.
Client:
import socket
import ssl
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
server_address = ('HOSTNAME', 10000)
print('Connecting to %s port %s' % server_address)
sock.connect(server_address)
ssl_sock = ssl.wrap_socket(
sock,
ssl_version = ssl.PROTOCOL_TLSv1_2
)
try:
message = str.encode(input('>>> '))
print('Sending "%s"' % message)
ssl_sock.sendall(message)
amount_received = 0
amount_expected = len(message)
while amount_received < amount_expected:
data = ssl_sock.recv(16)
amount_received += len(data)
print('Received "%s"' % data)
finally:
print('Closing socket')
ssl_sock.close()
Server:
import socket
import ssl
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
server_address = ('HOSTNAME', 10000)
print('Starting up on %s port %s' % server_address)
sock.bind(server_address)
sock.listen(1)
while True:
print('Waiting for a connection')
try:
connection, client_address = sock.accept()
stream = ssl.wrap_socket(
connection,
server_side = True,
certfile = 'fullchain.pem',
keyfile = 'privkey.pem',
ssl_version = ssl.PROTOCOL_TLSv1_2
)
except KeyboardInterrupt:
print('\nStopping server')
exit()
except:
print('ERROR')
continue
try:
print('Connection from', client_address)
while True:
data = stream.recv(16)
print('Received "%s"' % data)
if data:
print('Sending data back to the client')
stream.sendall(data)
else:
print('No more data from', client_address)
break
finally:
stream.close()
The server is running on my VPS and using the real certificate for HTTPS. Everything works, but I just want to be sure this test is secure before I build anything for real.